Turn filled chest into copper chest, so golems will pull from it

doing bulk item moves are still unwieldy, from one set of chests to another, since if you want the golems to do it, you have to make a bunch of copper chests, then move all your items to it, so that then the golems can move your items to a new place.

instead, I want to be able to put some copper plating onto my wooden chests, turning them into copper chests so that golems will start pulling from them.

This would be done with a copper plate item, crafted with two copper ingots side by side.

interacting with a chest while the copper plate is in your hand, changes the chest into a copper chest, with no other changes.

other handy things might be a shulker plating, that turns a chest into a shulker box, so you can pick it up without having to futz with taking all the items out and putting them into a shulker.